misc/libphysfs/lzma/CPP/Common/StringToInt.cpp
author antonc27 <antonc27@mail.ru>
Fri, 29 Dec 2017 22:37:31 +0100
branchios-develop
changeset 12871 2c06b1120749
parent 12213 bb5522e88ab2
permissions -rw-r--r--
- Fix ammos menu crash
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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// Common/StringToInt.cpp
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#include "StdAfx.h"
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#include "StringToInt.h"
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UInt64 ConvertStringToUInt64(const char *s, const char **end)
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{
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  UInt64 result = 0;
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  for (;;)
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  {
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    char c = *s;
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    if (c < '0' || c > '9')
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    {
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      if (end != NULL)
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        *end = s;
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      return result;
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    }
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    result *= 10;
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    result += (c - '0');
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    s++;
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  }
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}
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UInt64 ConvertOctStringToUInt64(const char *s, const char **end)
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{
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  UInt64 result = 0;
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  for (;;)
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  {
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    char c = *s;
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    if (c < '0' || c > '7')
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    {
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      if (end != NULL)
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        *end = s;
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      return result;
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    }
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    result <<= 3;
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    result += (c - '0');
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    s++;
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  }
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}
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UInt64 ConvertStringToUInt64(const wchar_t *s, const wchar_t **end)
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{
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  UInt64 result = 0;
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  for (;;)
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  {
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    wchar_t c = *s;
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    if (c < '0' || c > '9')
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    {
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      if (end != NULL)
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        *end = s;
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      return result;
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    }
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    result *= 10;
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    result += (c - '0');
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    s++;
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  }
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}
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Int64 ConvertStringToInt64(const char *s, const char **end)
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{
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  if (*s == '-')
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    return -(Int64)ConvertStringToUInt64(s + 1, end);
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  return ConvertStringToUInt64(s, end);
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}